Despite claims that MCP is obsolete, an OpenAI executive defends its relevance, noting that companies are rapidly building MCP servers to grant AI agents access to otherwise unreachable services. Critics argue that the protocol is merely a temporary workaround that unnecessarily duplicates existing human interfaces like public APIs and command-line tools. However, proponents counter that MCP provides essential security advantages by easily sandboxing agents, separating access tokens from requests, and strictly limiting executable commands.